What are the common seal failures of the R167-21.85-55KW reducer?

Reduction motor R167-21.85-55KW
The common sealing failures of mainly include the following:

Seal aging: After long-term use, the material of the seal will gradually age, become harder, brittle, lose elasticity, and lead to a decrease in sealing performance. For example, rubber seals can accelerate the aging process and experience cracking, fracture, and other phenomena in environments such as long-term high temperature and oil immersion, leading to oil leakage.

Seal wear: During the operation of the gearbox, there is relative motion between the seal and the rotating shaft or other components, and long-term friction can cause seal wear. If the lip of the oil seal wears out and cannot tightly adhere to the shaft surface, it will cause oil leakage. In addition, the roughness and hardness of the shaft surface do not meet the requirements, which will also exacerbate the wear of the seals.

Improper installation: When installing the seal, if the installation method is incorrect, such as the seal being installed too tightly or too loosely, twisted, deformed, etc., it will affect the sealing effect. For example, when installing an oil seal, if the lip of the oil seal is scratched or not evenly pressed in during installation, it can cause uneven local stress on the oil seal, leading to leakage.

Oil pollution: If the oil in the reducer contains impurities, particles, and other pollutants, it will flow into the gap between the seal and the mating surface, exacerbating the wear and scratches of the seal. For example, metal debris, dust, etc. in the oil can damage the sealing performance of the seal, leading to oil leakage.

Abnormal pressure: During the operation of the gearbox, if the internal pressure is too high or fluctuates greatly, it will generate a large pressure on the sealing components, exceeding their bearing capacity and causing sealing failure. For example, blocked ventilation holes can increase the internal pressure of the gearbox, causing damage to the seals.